http://www.rug.nl/research/portal/files/41711829/cesifo1_wp6448.pdf
https://brc.org.uk/media/674001/a-fair-deal-for-consumers-february-2020.pdf
https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/682894/Draft_Text_for_Discussion_-_Implementation_Period__1_.pdf
https://www.bloomberg.com/news/features/2021-09-02/food-prices-driven-up-by-global-worker-shortage-brexit